Q:
Brake/ tail lights

asked by
Justin S
on
September 10, 2016

My light failure sensor bad (burnt spot on circuit board), I got another one and after a few seconds it happened again so I simply bypassed the sensor (removed it) and for some reason both filaments light at same time in all 4 of the 1157 (brake/tail) bulbs ....they do get a little brighter when I hit the brake but it's not working like it should. Also when my running lights are OFF my dash lights dimm when i apply the brake but when my running are ON the dash lights are fine...please help if you can thank u

My car has 101000 miles.
My car has an automatic transmission.

Recommended Services

Choose your car for a more accurate estimate

You have a short circuit (possibly to ground) in the wiring for the board OR a fault in another component on the same circuit that is allowing too much current to flow through your sensor board causing it to fail. Best thing to do is do the electrical diagnosis, find and fix the short, and replace the board. YourMechanic can assist you with the electrical wiring diagnosis and procure a replacement board for you.

Get an instant quote for your car

What others are asking

Q: My car runs poorly and hesitates when I accelerate

Loss of power on acceleration can be due to plugged fuel injectors, faulty oxygen sensors, fuel pump and/or filter, vacuum leaks including that caused by a faulty EGR system, ignition system malfunctions, bad valve timing if the timing belt or...

Q: Window stuck down

Hi. Have a technician, experienced in electrical repair, inspect window system for proper operation and current draw, as well as binding in the window regulator assembly or window track. In the case of the damaged wiring, you may want to...

Hi there. To be honest, this problem could be caused by multiple fuel system or ignition system components. Some common reasons that an engine won't accelerate properly include dirty EGR valve, mass air flow sensors, or clogged fuel injectors /...

Related articles

Power windows are responsible for approximately 2,000 emergency room visits every year. When a power window closes, it exerts enough force to bruise or break bones, crush fingers, or restrict an airway. Though...